Bayern Munich president Uli Hoeness has said tours to Asia are necessary for clubs to establish themselves in new markets but admitted they are an issue for managers.
The Bundesliga champions will face Arsenal on July 19 in Shanghai, where they set up their own office earlier in the year, while three days later they take on AC Milan in Shenzhen.
Bayern then move on to Singapore to meet Premier League champions Chelsea on July 25 in the International Champions Cup, before completing their Asian trip with a game against Inter Milan.
Ancelotti is reported to be unhappy with the 13-day trip, and Hoeness told kicker: "This is clearly a problem for every coach."
However, former Bayern player and general manager Hoeness, who earlier this year described the spending in the Chinese Super League as "sick," says the club have ample preparation time to get ready for competitive action despite their summer exertions.
"On our return we still have three weeks," Hoeness said. "When I was playing we never enjoyed more time to prepare. These three weeks have to suffice in order to get the team fit."
Ahead of a fifth trip to China, Bayern CEO Karl-Heinz Rummenigge had said: "We want to play our part in Chinese football continuously expanding."
Hoeness added: "When you consider the big clubs on this planet -- Real Madrid, Barcelona, Manchester City -- they all go on tour. If you want to conquer new markets, you have to go there."
Borussia Dortmund are the first German side to jet off to Asia on Thursday, repeating their 2016 tour of Japan and China, with both Bayern and Schalke following three days later.
Top clubs from England, Spain and Italy have been more active in Asia for longer according to Dortmund CEO Hans-Joachim Watzke.
Therefore, Germany's top clubs are "obliged to generate significantly more TV revenue" that "will also benefit the smaller clubs," Watzke said.
Dortmund sporting director Michael Zorc says there was "no alternative" but to tour Asia once again, hoping for "a healthy mix of training sessions, valuable games and representative obligations."
However, holding a tour one month prior to the start of the new Bundesliga season enables the DFB Pokal winners "to integrate it well into our preparation," Zorc added.
Dortmund marketing director Carsten Cramer has planned in minute detail each of the total 161 hours of the Asian trip "in close cooperation" with new coach Peter Bosz.
"We have succeeded in combining these to everyone's interest," Cramer said.